GCF and LCM

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Prepare your students for fraction with a lesson about Greatest Common Factors and Least Common Multiples.  The lesson reviews all related vocabulary and offers multiple practice examples for teachers to work through with their students.  The lesson includes a practical activity that applies the concepts of GCF and LCM to reading and collecting data from calendars.

GCF and LCM Lesson Plan Includes:

  • Full Teacher Guidelines with Creative Teaching Ideas
  • Instructional Content Pages about GCF and LCM
  • Hands-on homework activities giving students practice on comparing and contrasting GCF and LCM
  • Answer Keys
  • Common Core State Standards
  • Many Additional Links and Resources
  • Built for Grades 6 but can be adapted for other grade levels.

*Note: These lessons are PDF downloads. You will be directed to the download once you checkout. Clarendon Learning resources are FREE, we rely 100% on donations to operate our site. Thank you for your support!

Description

Prepare your students for fractions with a lesson about Greatest Common Factors and Least Common Multiples.  The lesson reviews all related vocabulary and offers multiple practice examples for teachers to work through with their students.  The lesson includes a practical activity that applies the concepts of GCF and LCM to reading and collecting data from calendars.

Sample Classroom Procedures: 

  1. Begin by explaining to students the difference between multiples (skip counting by a number) and factors (the numbers used in multiplication facts).
  2. While reading the content pages, reinforce vocabulary and give students additional examples of GCF and LCM problems in order to help them practice the new skills.  Use the additional resources to enhance understanding.
  3. Introduce the notes on GCF and LCM. Have students practice problems using multiplication facts and prime factorization.  Use the additional resources to enhance understanding.
  4. Have students practice problems with a partner.
  5. Follow Activity page with students. Hand out calendars for each student and tell a short story using the prompts in the activity.  Check for understanding after each story.
  6. Distribute Practice page. Check and review the students’ responses as a class.
  7. Distribute the Homework page. Have students brainstorm ideas for their stories.  Share the stories at the beginning of the next class.
  8. In closing, ask students to repeat the difference between a factor and a multiple.
  9. Allow for responses and discussion.

Common Core State Standards: 

CCSS.Math.Content.6.G.A.3

Class Sessions (45 minutes): 1 class session

Additional Resources:

Many more teaching resources in Download!

Want more math resources? Check out our other Math Lesson Plans!

Additional information

Grade Level

6th Grade

Subject

Math